Paper-board.



B. Y. STEWART.

'PAPER'BOARD.

APPLICATION FILED MAR. 15, l 9 l5.

1, 185142. Patent-ed Ma so, 1916.

- W/T/VESSES: l w l Z sha /72th ewar' "Br A A TTORN E Y5 BENJAMIN YOUNG STEWART, OF BRIDGEPORT, CONNECTICUT.

PAPER-BQARD.

Application filed March 15,

T 0 all whom it may concern Be it known that I, BENJAMIN YOUNG S'rnvvan'r, a subject of the King of Great Britain, and resident of Bridgeport, in the county of Fail-field and State of Connectiout, have invented certain new and useful Improvements in Paper-Board, of which the following is a specification.

My invention relates to new and useful improvements in paper board such as is used for building purposes, and is particularly employed for forming the inside walls of the rooms of houses in somewhat the same manner as plaster board and so calledbeavcr board and other forms of prepared inside covering materials are used.

The purpose of the invention is to provide a building board of the class specified which may readily be produced in sheets of any desired size and thickness from old 'waste papers as for instance newspapers;

to assemble and unite the same into one solid and rigid sheet which may be sawed or cut and fitted so that the adjacent edges may be closely fitted to form a smooth surface to design the board so that it may be made inexpensively and yet when finished will represent a substantial and durable article.

With these and other objects in View the invention resides and consists in the novel arrangement, formation and manner of uniting the scrap papers as will hereinafter be more fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended.

Similar characters of reference will be found to designate like or corresponding parts throughout the several figures of the accompanying drawings forming a part of this specification and upon which- Figure 1 shows a perspective view of asheet of my improved form of paper board,

.the outer surface covering being omitted.

Fig. 2'is a central vertical longitudinal section through the sheet of paper board shown in Fig. 1, but-including the outer finishing layers of paper, and Fig. 3 is a plan view of. a series of sheets ofnewspapers stacked together as in the method of forming my paperboard, the "corner portions of a few of. the sheets being turned up to more clearly illustrate the manner of. assembling the same.-

As previously, intimated my improved paper boardis made from old newsp apers.

Specification of Letters Patent.

PatentedMay 30, 191.6.

1915. Serial No. 14,493.

While other kinds of paper are as desirable,

yet in as much as the newspapers are usually of uniform size they can be more quickly assembled in the art of forming my paper board than would be possible with miscellaneous size papers. I have therefore attempted to indicate in the drawings a pile of newspapers assembled in the manner of my invention and with special reference to the breaking of the joints when laying the several sheets of paper together.

In practice the paper board large sheets and of thirty or forty layers of newspapers. Each layer includes several sheets, possibly from six to ten. The number of layers can be varied as required to give the desired thickness of paper board.

In the drawings (6 represents the several paper. but special prepared sheets of white] or colored paper as may be desired to form the surface or finlsh of the paper board. In

' practice one of these finishing sheets is spread out upon a tray and then brushed over with x is made 1n a suitable paste or hinder after which a num- I ber of sheets of newspapers are laid thereon and likewise brushed down. After this another layer of newspapers is laid upon the first mentioned layer of newspapers in a manner to cover all joints. This second layer like the first is brushed and struck down to the first layer and then again coated over with a binder preparatory to receiving the third layer of newspapers. This third layer is laid upon the second layer of papers in a way to i also break all joints of the second layer, and

so on, the numerous layers are stacked one upon the other and each time glued together and also each time arranged so that all joints are broken and likewise so that the joints of the alternate sections will not register. When the desired number of newspapers are laid together in the manner desired then the large top sheet of finished or surface paper is brushed down upon the last layer of newspapers. After the pile is thus assembled and arranged upon a tray the latter, together with several like piles, are placed under a press which is brought down'upon the several piles in a way to exertan enormous pressure upon the assembled sheets. This naturally flattens out and sticks together tightly the numerous sheets of; each pile.

The press is preferably allowed to remain closed upon the assembled papers for some only a very good paperboard, but doing-it in an inexpensive and'economical manner.

Having thus described my invention What I claim and desire to secure by Letters Patent is I j l; A paper board of the-class described,

the same-Jcomprising a series of layers ofpapers each layer of which includes a number of sheets irregularly arranged With respect to the other layers so that the-joints of the several sheets of each layer Will be covered by the sheets of the adjoining layers, a sheet of finishing paper applied to each side of the pile to form a finished surface for the paper board, a binder applied v between the sheets and all of the said sheets being tightly squeezed together.

, 2. A paper board of the class described,

the same formed of a series of layers of so papers arranged upon each other each layer including a number of sheets irregularly arranged With respect to the other, layer so that the joints of the several sheets comprising each layer Will not register With the 3 joints of the sheets of the adjoining layers, a large unbroken sheet of finishing paper applied to each of the two outer sides of the pile toform a finished covering for the paper board, and a binder applied between the 40 sheets to hold the bulk together when pressed. j

Si ned at Bridgeport in the county of Fair eld and State of Connecticut this 20thday of February, A. -D., .1915. v

BENJAMIN YOUNG- STEWART.

Witnesses:

O. M. NEWMAN, RUTH M. W. Koenn. 

